CN106683863A - Determination method of transformer liquid bag press fitting - Google Patents
Determination method of transformer liquid bag press fitting Download PDFInfo
- Publication number
- CN106683863A CN106683863A CN201710158570.7A CN201710158570A CN106683863A CN 106683863 A CN106683863 A CN 106683863A CN 201710158570 A CN201710158570 A CN 201710158570A CN 106683863 A CN106683863 A CN 106683863A
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- China
- Prior art keywords
- liquid bag
- pressure
- height
- press fitting
- press
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a determination method of transformer liquid bag press fitting, and belongs to the technical field of manufacturing of transformer and electric reactor process. The technical scheme includes that the method includes the steps: summarizing and inducing relations between liquid bag hose pressure and liquid bag hose height by the aid of experimental verification data; comparing calculated values of the liquid bag hose height in the relations with actual values to obtain end conditions controlling liquid bag press fitting. The determination method has the advantages that the end conditions of liquid bag press fitting process can be simply and visually controlled, so that liquid bag press fitting products meet press fitting effect, product quality is ensured, and the determination method is simple and convenient to operate, good in practicability and easy to popularize and apply.
Description
Technical field
The present invention relates to a kind of determination method that transformator liquid bag press-fits, belongs to transformator and reactor process manufacturing technology
Field.
Background technology
Traditional transformer press-fit approach is according to the mounting tonnage be given in design drawing, using hydraulic jack（Also known as
Oil cylinder or " Rhizoma Anemones flaccidae "）To control the pressure for press-fiting.And when press-fiting operation using liquid bag, because liquid band flexible pipe is difficult to measure its pressure
Contact area under state, therefore its press-fiting pressure cannot be controlled by controlling its mounting tonnage, cause inconvenient operation, hardness
Product quality, is unfavorable for popularization and application.
The content of the invention
It is an object of the present invention to provide a kind of determination method that transformator liquid bag press-fits, can simply, intuitively control liquid bag
Press-fit the termination condition of operating process, make the product that liquid bag press-fits meet press-fit effect, it is ensured that product quality, it is easy to operate, it is real
It is good with property, it is easy to popularization and application, solve the problems referred to above present in background technology.
The technical scheme is that：
A kind of determination method that transformator liquid bag press-fits, by experimental verification data, summary and induction goes out liquid bag flexible pipe pressure and liquid
Relational expression between bag height, is compared by the value of calculation of liquid bag flexible pipe height in relational expression with actual value, and then is obtained
The termination condition that control liquid bag press-fits；Comprise the steps of：
According to the rigid structure of liquid bag, assert that the girth of liquid bag is constant when liquid bag is oil-filled, under different pressure the height of liquid bag and
Liquid bag is constant with pressing plate contact width corresponding relation；
According to liquid bag and pressing plate contact width and the liquid bag total length of drawing requirement, the total contact area of liquid bag is calculated, further according to
Oil-filled pressure in liquid bag, draws coil pressure；
By experimental verification data, the relational expression between liquid bag pressure and liquid bag height is summarized, it is high by liquid bag in relational expression
The value of calculation of degree is compared with actual value, show that control liquid bag press-fits the termination condition of process.
Present invention has the advantages that：The termination condition that liquid bag press-fits operating process can simply, be intuitively controlled, liquid bag is made
The product for press-fiting meets press-fit effect, it is ensured that product quality, easy to operate, and practicality is good, it is easy to popularization and application.
Description of the drawings
Fig. 1 is the corresponding relation of embodiment of the present invention liquid bag height and width when being 1MPa；
In figure：The corresponding point of liquid bag differing heights and width when each point represents 1MPa.
Specific embodiment
Below in conjunction with accompanying drawing, by embodiment, the invention will be further described.
A kind of determination method that transformator liquid bag press-fits, by experimental verification data, summary and induction goes out liquid bag flexible pipe pressure
With the relational expression between liquid bag height, it is compared with actual value by the value of calculation of liquid bag flexible pipe height in relational expression, and then
Obtain controlling the termination condition that liquid bag press-fits；Comprise the steps of：
According to the rigid structure of liquid bag, assert that the girth of liquid bag is constant when liquid bag is oil-filled, under different pressure the height of liquid bag and
Liquid bag is constant with pressing plate contact width corresponding relation；
According to liquid bag and pressing plate contact width and the liquid bag total length of drawing requirement, the total contact area of liquid bag is calculated, further according to
Oil-filled pressure in liquid bag, draws coil pressure；
By experimental verification data, the relational expression between liquid bag pressure and liquid bag height is summarized, it is high by liquid bag in relational expression
The value of calculation of degree is compared with actual value, show that control liquid bag press-fits the termination condition of process.
In embodiment, according to the rigid structure of liquid bag, can assert that the girth of the liquid bag when liquid bag is oil-filled is constant.By reality
The test amount width that the oil-filled height of liquid bag and liquid bag are contacted with pressing plate under different pressure, it is known that the height of liquid bag under different pressure
Degree and liquid bag are constant with pressing plate contact width corresponding relation.Therefore surveyed according to the experiment under liquid bag differing heights during 1MPa with width
Value drafting pattern 1.
Draw straight line formula：D = -1.36H + 107
Wherein D：To measure liquid bag stress width, unit is mm；
H：To measure liquid bag stress height, unit is mm；
The total contact area of liquid bag can be calculated further according to liquid bag and pressing plate contact width with liquid bag total length in drawing.Meanwhile, root
According to pressure oil-filled in liquid bag such that it is able to accurately draw whole-set coil pressure.
In order to simplify operation, experimental data is summarized, finally summarize the pass between liquid bag pressure and liquid bag height
It is formula：P=K/(107-1.36H)
Wherein P：For liquid bag output pressure, unit is MPa；
K：For constant, K=F*10000/ ∑ S；
∑S：Total length is contacted with end circle for liquid bag, unit is mm, is provided by drawing；
F：For liquid bag compaction pressure, unit is ton, is given by drawing.
When device body is compressed and operated, according to liquid bag compression apparatus output pressure P（Maximum output 1.5MPa）Situation, calculates
The respective value of pressure P and liquid bag height H, calculates liquid bag theoretical level H under each pressure condition, while liquid bag height h is measured,
Relatively H and h sizes, if measured value h is less than value of calculation H, continue to increase liquid bag pressure P；Continuing the operation according to more than carries out adding
Pressure, until measured value h and value of calculation H and when being sufficiently close to, then can confirm that mounting tonnage meets and require, completes liquid bag and press-fits behaviour
Make.
Success project transformators multiple at home and abroad and reactor product are press-fited the present invention, easy to operate, pressure
Dress works well, it is ensured that product quality, it is to avoid press-fit the product quality problem for causing not in place, and is highly susceptible to promoting,
The equal pass the test of all products.
Claims (1)
1. a kind of determination method that transformator liquid bag press-fits, it is characterised in that by experimental verification data, summary and induction goes out liquid bag
Relational expression between flexible pipe pressure and liquid bag height, is compared by the value of calculation of liquid bag flexible pipe height in relational expression with actual value
Compared with, and then obtain controlling the termination condition that liquid bag press-fits；Comprise the steps of：
According to the rigid structure of liquid bag, assert that the girth of liquid bag is constant when liquid bag is oil-filled, under different pressure the height of liquid bag and
Liquid bag is constant with pressing plate contact width corresponding relation；
According to liquid bag and pressing plate contact width and the liquid bag total length of drawing requirement, the total contact area of liquid bag is calculated, further according to
Oil-filled pressure in liquid bag, draws coil pressure；
By experimental verification data, the relational expression between liquid bag pressure and liquid bag height is summarized, it is high by liquid bag in relational expression
The value of calculation of degree is compared with actual value, show that control liquid bag press-fits the termination condition of process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710158570.7A CN106683863A (en) | 2017-03-17 | 2017-03-17 | Determination method of transformer liquid bag press fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710158570.7A CN106683863A (en) | 2017-03-17 | 2017-03-17 | Determination method of transformer liquid bag press fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106683863A true CN106683863A (en) | 2017-05-17 |
Family
ID=58828758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710158570.7A Pending CN106683863A (en) | 2017-03-17 | 2017-03-17 | Determination method of transformer liquid bag press fitting |
Country Status (1)
| Country | Link |
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| CN (1) | CN106683863A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113258121A (en) * | 2021-05-17 | 2021-08-13 | 湖北亿纬动力有限公司 | Method for calculating width of winding type bare cell after hot pressing |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4491016A (en) * | 1981-11-05 | 1985-01-01 | Pfister Gmbh | Method and apparatus for measuring the pressure of a fluid |
| CN1123534A (en) * | 1994-02-18 | 1996-05-29 | 布克-盖耶股份公司机器制造厂 | Process for controlling or regulating the pressure of a press for separating solids and liquids |
| CN1458349A (en) * | 2003-05-22 | 2003-11-26 | 常州宏发经编复合新材料有限公司 | Method of using film structure water bag in prepressing soft foundation |
| CN101248497A (en) * | 2005-07-01 | 2008-08-20 | 西门子公司 | Electrical component |
| CN104951622A (en) * | 2015-07-08 | 2015-09-30 | 安徽工程大学 | Method for establishing mathematical model about change rule of pressure in soft infusion bottle |
| CN204792411U (en) * | 2015-07-16 | 2015-11-18 | 四川东方变压器集团有限公司 | Coil constant voltage equipment of coil suitable for different diameters |
| CN205645530U (en) * | 2016-05-26 | 2016-10-12 | 山东泰开特变有限公司 | Arc limit winding pressure equipment device for oil -immersed transformer |
-
2017
- 2017-03-17 CN CN201710158570.7A patent/CN106683863A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4491016A (en) * | 1981-11-05 | 1985-01-01 | Pfister Gmbh | Method and apparatus for measuring the pressure of a fluid |
| CN1123534A (en) * | 1994-02-18 | 1996-05-29 | 布克-盖耶股份公司机器制造厂 | Process for controlling or regulating the pressure of a press for separating solids and liquids |
| CN1458349A (en) * | 2003-05-22 | 2003-11-26 | 常州宏发经编复合新材料有限公司 | Method of using film structure water bag in prepressing soft foundation |
| CN101248497A (en) * | 2005-07-01 | 2008-08-20 | 西门子公司 | Electrical component |
| CN104951622A (en) * | 2015-07-08 | 2015-09-30 | 安徽工程大学 | Method for establishing mathematical model about change rule of pressure in soft infusion bottle |
| CN204792411U (en) * | 2015-07-16 | 2015-11-18 | 四川东方变压器集团有限公司 | Coil constant voltage equipment of coil suitable for different diameters |
| CN205645530U (en) * | 2016-05-26 | 2016-10-12 | 山东泰开特变有限公司 | Arc limit winding pressure equipment device for oil -immersed transformer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113258121A (en) * | 2021-05-17 | 2021-08-13 | 湖北亿纬动力有限公司 | Method for calculating width of winding type bare cell after hot pressing |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170517 |
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| RJ01 | Rejection of invention patent application after publication |